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56 patients were examined with bicycle stress tests. Sensitivity and specificity of ST-segment depression were compared with R-wave amplitude changes. All patients had a coronary angiography because of suspected coronary artery disease (CAD). The specificity of ST-segment depression was 71%, for R-wave amplitude changes 50%. The sensitivity for ST-segment depression was 76% and for R-wave amplitude changes 50%. In addition in 7 patients with angiographically demonstrated CAD repeated stress tests were done. The ST-segment changes were nearly constant in all examinations, whereas the R-wave amplitude in V5 in 5 out of 7 patients changed considerably between decrease and increase. Considering these intraindividual changes, it seems doubtful whether the evaluation of the R-wave amplitude proves to be an improvement of the non-invasive diagnostic procedures of CAD.
E Hoberg, and
R Lemke, and
G Wermuth, and
D Klaus
January 1979,
Journal of electrocardiology,
E Hoberg, and
R Lemke, and
G Wermuth, and
D Klaus
April 1980,
American heart journal,
E Hoberg, and
R Lemke, and
G Wermuth, and
D Klaus
November 1982,
Zhonghua nei ke za zhi,
E Hoberg, and
R Lemke, and
G Wermuth, and
D Klaus
May 1978,
Circulation,
E Hoberg, and
R Lemke, and
G Wermuth, and
D Klaus
September 1980,
Deutsche medizinische Wochenschrift (1946),
E Hoberg, and
R Lemke, and
G Wermuth, and
D Klaus
January 1980,
Giornale italiano di cardiologia,
E Hoberg, and
R Lemke, and
G Wermuth, and
D Klaus
May 1984,
Journal of the American College of Cardiology,
E Hoberg, and
R Lemke, and
G Wermuth, and
D Klaus
July 1987,
Journal of electrocardiology,
E Hoberg, and
R Lemke, and
G Wermuth, and
D Klaus
November 1990,
Clinical physiology (Oxford, England),
E Hoberg, and
R Lemke, and
G Wermuth, and
D Klaus
November 1983,
Deutsche medizinische Wochenschrift (1946),
